Steven Landau was chosen to moderate a panel discussion on "Measuring System Performance: The Role of Aviation in the Overall Transportation System," at the 2015 National Aviation System Planning Symposium. EDR Group was also proud to serve as a sponsor of the conference, which was held May 17-19, 2015 in Charleston, SC. Attendees had the opportunity to exchange ideas and information toward addressing critical systems pertaining to our nation's aviation system. This was an important opportunity for aviation system planners, engineers, researchers, managers and others interested in the future of the national aviation system. The symposium is organized the Transportation Research Board Committee on Aviation System Planning.